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Phoenix Contact MSTB258STF508EX Printed-circuit board connector

The PHOENIX CONTACT MSTB 2 5/ 8-STF-5 08 EX is a robust printed-circuit board connector designed for reliable connections in industrial environments. It features 8 positions with a 5.08 mm pitch, ensuring compatibility with standard layouts. The connector utilizes a screw connection with a tension sleeve, providing a secure and durable electrical connection. It is suitable for applications requiring high voltage and current capacity, and is approved for use in potentially explosive atmospheres (Ex approval). The connector's green color and tin-plated contact surface enhance its durability and performance.

Authorized Distributors
Part No:MSTB25/8-STF-508EX
Stock:0
Inv Date:05-29-2026
Price: N/A
Buy/RFQ:
Part No:MSTB-2-5/-8-STF-5-08-EX
Stock:43
Inv Date:05-28-2026
Price: Unit price: $8.41
Buy/RFQ:
Part No:MSTB-2-5/-8-STF-5-08-EX
Stock:43
Inv Date:05-28-2026
Price: Unit price: $8.41
Buy/RFQ:

Phoenix Contact MSTB258STF508EX Printed-circuit board connector Specifications:

  • Nominal current: 12 A
  • Rated voltage (III/2): 320 V
  • Nominal current (Ex): 12 A
  • Nominal voltage (Ex): 176 V
  • Number of positions: 8
  • Pitch: 5.08 mm
  • Connection method: Screw connection with tension sleeve
  • Color: green
  • Contact surface: Tin
  • Plug-in direction: Parallel to the conductor axis
  • Ex approval: For voltages up to 176/275 V
  • Packing unit: 1 pc
  • Weight per Piece (excluding packing): 14.8 g
  • Custom tariff number: 85366990
  • Country of origin: Germany
  • Dimension a: 35.56 mm
  • Range of articles: MSTB 2,5/..-STF-EX
  • Type of contact: Female connector
  • Insulating material group: I
  • Rated surge voltage (III/3): 4 kV
  • Rated surge voltage (II/2): 4 kV
  • Rated voltage (III/3): 250 V
  • Rated voltage (II/2): 630 V
  • Connection in acc. with standard: EN-VDE
  • Nominal cross section: 2.5 mm²
  • Insulating material: PA
  • Flammability rating according to UL 94: V0
  • Internal cylindrical gage: A3
  • Stripping length: 7 mm
  • Screw thread: M3
  • Tightening torque, min: 0.5 Nm
  • Tightening torque max: 0.6 Nm
  • Conductor cross section solid min.: 0.2 mm²
  • Conductor cross section solid max.: 2.5 mm²
  • Conductor cross section flexible min.: 0.2 mm²
  • Conductor cross section flexible max.: 2.5 mm²
  • Conductor cross section flexible, with ferrule without plastic sleeve min.: 0.25 mm²
  • Conductor cross section flexible, with ferrule without plastic sleeve max.: 2.5 mm²
  • Conductor cross section flexible, with ferrule with plastic sleeve min.: 0.25 mm²
  • Conductor cross section flexible, with ferrule with plastic sleeve max.: 2.5 mm²
  • Conductor cross section AWG min.: 24
  • Conductor cross section AWG max.: 12
  • 2 conductors with same cross section, solid min.: 0.2 mm²
  • 2 conductors with same cross section, solid max.: 1 mm²
  • 2 conductors with same cross section, stranded min.: 0.2 mm²
  • 2 conductors with same cross section, stranded max.: 1.5 mm²
  • 2 conductors with same cross section, stranded, ferrules without plastic sleeve, min.: 0.25 mm²
  • 2 conductors with same cross section, stranded, ferrules without plastic sleeve, max.: 1 mm²
  • 2 conductors with same cross section, stranded, TWIN ferrules with plastic sleeve, min.: 0.5 mm²
  • 2 conductors with same cross section, stranded, TWIN ferrules with plastic sleeve, max.: 1.5 mm²
  • eCl@ss 4.0: 272607xx
  • eCl@ss 4.1: 27260701
  • eCl@ss 5.0: 27260701
  • eCl@ss 5.1: 27141190
  • eCl@ss 6.0: 27260704
  • eCl@ss 7.0: 27440402
  • eCl@ss 8.0: 27440309
  • eCl@ss 9.0: 27440309
  • ETIM 4.0: EC002637
  • ETIM 5.0: EC002637
  • UNSPSC 6.01: 30211810
  • UNSPSC 7.0901: 39121409
  • UNSPSC 11: 39121409
  • UNSPSC 12.01: 39121409
  • UNSPSC 13.2: 39121409

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Frequently Asked Questions

Where can I buy Phoenix Contact MSTB258STF508EX?

You can click on the BUY or RFQ button to purchase MSTB258STF508EX from an authorized Phoenix Contact distributor.

How do I troubleshoot issues or seek technical support for part MSTB258STF508EX?

You can download the MSTB258STF508EX datasheet or visit the Phoenix Contact website for support.

Who is the manufacturer of MSTB258STF508EX?

Phoenix Contact

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